Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-23T16:12:46.632Z Has data issue: false hasContentIssue false
  • English
  • Français

Line Formation in Moving Atmospheres

Published online by Cambridge University Press:  08 February 2017

W. Kalkofen
W. Kalkofen*
Affiliation:
Smithsonian Astrophysioal Observatory and Harvard College Observatory, Cambridge, Massachusetts

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We discuss an integral equation method that permits the calculation of the line source functions and of the emergent profiles in finite and semiinfinite atmospheres with macroscopic motion normal to the surface. Solutions are presented for a semiinfinite atmosphere with a temperature rise in the outward direction and with a flow that decays with increasing depth. The computed profiles have the form of P Cygni lines.

Keywords

line formatiomoving atmosphereline-profile computation
Type
Part B. Theoretical Methods for Handling Non-LTE Problems
Information
International Astronomical Union Colloquium , Volume 2: Spectrum Formation in Stars With Steady-State Extended Atmospheres , August 1970 , pp. 120 - 133
Copyright
Copyright © 1970

References

Athay, R. G., and Skumanich, A. 1967, Ann. d'Ap., 30, 669.Google Scholar
Auer, L. H., and Mihalas, D. 1969, Ap. J. (Letters), 156, L151.Google Scholar
Cuny, Y. 1967, Ann. d'Ap., 30, 143.Google Scholar
Feautrier, P. 1964, C. R., 258, 3189; 1968, Ann. d'Ap., 31, 257.Google Scholar
Groth, H. G. 1960, Z. Astrophys., 51, 231.Google Scholar
Hummer, D. G., and Rybicki, G. B. 1968, Proc. Conf. on Resonance. Lines in Astrophys., National Center for Atmospheric Research.Google Scholar
Jones, H. P., and Skumanich, A. 1968, Proc. Conf. on Resonance. Lines in Astrophys., National Center for Atmospheric Research.Google Scholar
Kuhlander, J. L. 1968, J.Q.S.R.T., 8, 273.Google Scholar
Magnan, C. 1968, Ap. J. (Letters), 2, 213.Google Scholar
Thomas, R. N. 1957, Ap. J., 125, 260.Google Scholar